unplugged-system/external/ltp/testcases/kernel/syscalls/alarm/alarm03.c

37 lines
687 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
* Author: Richard Logan
* Copyright (c) Linux Test Project, 2001-2022
*/
/*\
* [Description]
*
* Verify that alarms created by alarm() are not inherited by children
* created via fork.
*/
#include <stdlib.h>
#include "tst_test.h"
static void verify_alarm(void)
{
pid_t pid;
TST_EXP_PASS_SILENT(alarm(100));
pid = SAFE_FORK();
if (pid == 0) {
TST_EXP_PASS(alarm(0), "alarm(0) in child process");
exit(0);
}
TST_EXP_VAL(alarm(0), 100, "alarm(0) in parent process");
}
static struct tst_test test = {
.test_all = verify_alarm,
.forks_child = 1,
};